I can't decide what to be for Halloween! I have dressed up as a thin Mario (the overalls fit just so that I could stuff any pillows or anything down my front), Toad (a chef's hat with painted on red dots and some stuffing to that it doesn't go all flat..), Willy Wonka (I did that when I worked at Walmart *shudder* and it won me one free day of paid vacation..)
The Wonka costume was cool because it was a conglomeration of all known Wonkas (I even gave out a few Wonka bars, but I ran out before noon).
Mario and Toad wouldn't be hard to pull off again, but I was thinking of either being Mickey Mouse as the wizard's apprentice, or the enchanted broom-stick from the same cartoon (from the movie Fantasia, if you don't know/remember).
As for trick or treating, I am 24 years old, so I don't think I'll be doing that. I'll probably go to BK's halloween party, unless I either worked there all day, or my fiancee and her sister have other plans.